Subsoil-plow attachment.



J. A. HUGGINS. SUBSOIL PLOW ATTAGHMENT. APPLICATION FILED SEPT. 28,1911.

I 1,033,245 Patented July 23,1912.

2 SHBETSSHEET 1.

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UNTTFAD STATES PATEN T QFFICE.

JAMES ALLEN I-IUGGINS, REID SPRINGS, NORTH CAROLINA.

SUBSOIL-PLOW ATTACHMENT.

Specification of Letters Patent.

Patented July 23, 1912.

Application filed September 28, 1911. Serial No. 651,726.

To all whom it may concern:

Be it known that 1, JAMES ALLEN HUG- ems, a citizen of the UnitedStates, residin at Red Springs, in the county of Robeson and State ofNorth Carolina, have invented certain new and useful Improvements inSubsoil-Plow Attachments; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in subsoil attachments for plows.

One object. of the invention is to provide a subsoil plow having animproved means for removably and adjust-ably attaching the same to anordinary plow whereby the subsoil plow will travel immediately behindand in the furrow formed by the turning plow thus working or looseningup the subsoil without turning the same.

Another object is to provide an improved means for adjusting and liftingthe subsoil plow out of engagement with the ground.

lVith these and other objects in view the invention consists of certainnovel features of construction, combination and arrangement of parts aswill be more fully described and claimed.

In the accompanying drawings :Figure 1 is a side view of a plow showingthe application of my improved subsoil plow attachment and illustratingthe parts lowered or in an operative position in full lines and in araised or inoperative position in dotted lines; Fig. 2 is a verticalsectional view on the line 22 of Fig. 1; Fig. 3 is a horizontalsectional view on the line 33 of Fig. 1; Fig. t is a vertical sectionalview through the clevis attaching clip of the subsoil plow taken on theline M of Fig. 5; Fig. 5 is a vertical sectional view taken at rightangles to and on the line 55 of Fig. 4; Fig. 6 is a detail perspectiveview of the plate for engaging the clevis and holding the latter and thesubsoil plow from careening or tilting sidewise when in use; Fig. 7 is adetail side view partly in sect-ion of a portion of a plow showing amodified construction and arrangement of the clevis attachment of theplow; Fig. 8 is a detail side view of the rear adjustable member of thesupporting wheel standard.

Referring more particularly to the drawings, 1 denotes the beam and 2the integral standard of an ordinary turning plow. To the lower end ofthe standard 2 is secured the ordinary or any suitable form of turningor mold board plow 3. To the plow 3 and lower end of the standard aresecured suitable handles 1. The handles are adj ustably connected to thebeam 1 of the plow by brace bars 5. 1

Bolted or otherwise firmly secured to the standard 2 is a clevisattaching clip 6. The clip 6 is provided on its rear edge with a seriesof spaced apertured ears 7 or shoulders with which is engaged a clevisattaching bolt 8. Adapted to be engaged with one of the spaces betweenthe ears 7 is a clevis 10, said clevis comprising a pair of parallelvertically disposed apertured lugs 10 and a horizontally disposedattaching plate 11 of a suitable thickness for closely fitting betweenthe ears 7 of the clip, said plate 11 having formed therein a series ofbolt holes 12 with one of which is adapted to be engaged the bolt 8whereby the clevis may be secured to the clip and adjusted bothhorizontally and vertically. It will be noted that the plate 11 of theclevis is of less thickness than the lugs 9 thus forming an abruptshoulder 13. This shoulder is provided to engage the lower edge of aclevis bracing and holding block 1 1 which has formed thereon attachinglugs 15 adapted to be inserted between the ears 7 of the clip 6 in whichposition it is firmly held by the bolt 8 which is inserted through thebolt holes 16 of the ears 7 When thus arranged the lower edge of theplate 1 1 rests on the plate 11 of the clevis and engages the shoulder13 thereby preventing the clevis from twisting or tilting on the clipand holding the subsoil plow against careening when the latter isattached to the clevis as will be hereinafter described.

Pivotally connected to the lugs 10 of the clevis by a connecting bolt 17is a support ing wheel standard 18 which consists of a main membercomprising a pair of bars having their rear ends bent downwardly andforwardly, said forwardly projecting portion of the bars being formed atan angle and terminating at their forward ends near the surface of theground, said ends being turned upwardly to a slight extent to formrunners 18 Revolubly mounted in the forward ends or runners 18 is asupporting wheel 18 Secured to the bars of the standard 18 adjacent tothe wheel 18 is a cleaning blade or scraper 18 which is adapted toengage the periphery of the wheel 18 and thus remove .any dirt orforeign matter which may collect on the wheel. Between the downwardlyprojecting rear portion of the bars is a rear wheel standard member 19comprising vertically disposed bars having therein series of bolt holes19" with which when the member 19 is engaged between the rear portionsof the main wheel standard are adapted to be engaged fastenings bolts 19whereby said rear member of the standard is adjustably secured to themain member. The lower ends of the bars 19 are bent rearwardly to formrunners 19 between which is revolubly mounted a rear supporting wheel19. By thus constructing the rear member of the beam it will be seenthat said member may be readily adjusted to bring the wheel 19 below thelevel of the wheel 18 when desired.

To the outer sides of the upper or for ward ends of the bars forming thestandard 18 is secured the lower ends of longitudinally slotted pivotplates 20. Slidably engaged with the slots 21 in the pivot plates 20 isa plow attaching bolt 22 to which pivotally connected the rightangularly formed upper end of a subsoil plow standard 23 to the lowerend of which is secured a subsoil plow 24:. The upper end of thestandard 23 of the subsoil plow is disposed bet-ween the bars of thesupporting wheel standard 18 and the plates 20 as shown. By thusattaching the standard 23 of the plow with the pivot plates 20, saidplow may be adjusted to plow more or less deeply or may be liftedentirely out of engagement with the ground.

Revolubly mounted between the lower forwardly projecting portion of thebars of the supporting wheel standard 18 are guide rollers 18 whilebetween the upper forwardly extending portion of the bars of saidstandard is revolubly mounted a guide roller 18. The rollers 18 and 18are arranged in the standard 18 in position to engage the front and rearedges of the plow standard 23 as shown, whereby the latter will be heldin position and guided in its movements when raised and lowered by asuitable attaching mechanism hereinafter described. In order to thusadjust and lift the subsoil plow I provide a suitable lifting oradjusting mechanism comprising a pair of cam levers 3O pivotallyconnected to the upper end of the plates 20 and having curved slottedlower ends slidably engaged with the attaching bolt 22 which pivotallyconnects the front end of the standard with the slotted plates 20. Theupper ends of the cam levers 30 are operatively connected by a link orconnecting rod 31 with a hand lever 32 which is pivotally connected tothe standard 18 as shown. The hand lever 32 projects upwardly betweenthe handles of the main plow and has. its upper end arranged withinconvenient reach of the op erator. The lever is provided with a springprojected pawl 33 which is adapted to engage a segmental rack 3% on theupper portion of the standard 18 whereby the lever is locked and theparts actuated thereby are held in their adjusted positions. By thusarranging the hand lever 32 and connecting the same with the cam levers30 these parts may be readily actuated for adjusting the subsoil plow orfor lifting the latter entirely out of the ground. By arranging thesubsoil plowv and connecting the same to the main plo as herein shownand described the subsoil. plow will travel in the furrow formed by thepoint of the main plow and will. loosen up the subsoil, in the bottom ofthe furrow without turning said soil, thereby materially facilitatingthe cultivation of the soil. By providing the runners 18 and 19 on thelower ends of the bars of the wheel standard the supporting wheelsthereof may be removed and the standard supported on the runners.

In Fig. 7 of the drawings is shown a slightly modified construction andarrangement of the clevis attaching mechanism, said mechanism beingshown in this instance as comprising a series of parallel apertured lugs18 which are formed integral with the foot of the main plow as shown.r-idapted to be engaged with the lugs 18 is a clevis ll which isconstructed in the same manner as the clevis 9 shown in the first formof the invention and a further description of this clevis is not thoughtto be necessary. The clevis 14 is secured in engagement with the lug 43by a pivot bolt 4L5 and the clevis is braced by a bracing plate or block16 corresponding to the bracing plate or block 1% of the clevis 9. Thebracing block or plate 41-6 may be arranged above or below the clevisand is shown in the present instance as being engaged with the underside of the same. To the clevis a l is connected the forward end of thesupporting wheel standard, said standard being connected and arranged inthe same manner as described in connection with the first form of theattachment.

\Vhile the invention is herein shown and described as an attachment forplows, it is obvious that the same may be employed as a subsoil plowindependent of or separately from a regular plow.

From the foregoing description, taken in connection with theaccompanying drawings the construction and operation of the inventionwill. be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention as claimed.

Having thus described my invention, what I claim is: i

1. A subsoil attachment for plows comprisinga supporting wheel standard,supporting wheels revolubly mounted in the lower ends of said standard,a clevis pivotally connected to the upper ends of the standard, means toadjustably connect said clevis to the standard of the plow wher by saidsupporting wheel may be adjusted vertically and horizontally, a subsoilplow standard having its upper end loosely connected with the upperportion of said supporting wheel standard, and a subsoil plow connectedto the lower end of said plow standard.

2. A subsoil plow attachment for plows con'iprising a supporting wheelstandard, a clevis attaching clip secured to the main plow, a clevisadjustably secured to the clip, means whereby the supporting wheelstandard is pivotally connected to the clevis, pivot plates secured tothe forward end of the supporting wheel standard, a subsoil plowstandard having a sliding connection at its upper end with said plates,a subsoil plow secured to the lower end of said standard, and meanswhereby said sub-soil plow standard and plow are adjusted.

3. A subsoil attachment for plows comprising a supporting wheelstandard, means to pivotally and adjustably connect the upper end ofsaid standard with the standard of the main plow, pivot plates securedto said wheel standard, said plates having longitudinal slots formedtherein, a subsoil plow standard having a pivot bolt adapted to slidablyengage the slots in said plates, cam levers pivotally mounted on saidplates and having curved slots adapted to engage the pivot bolt in theplow standard, and

means for moving said levers whereby the standard may be raised andlowered.

A. A subsoil attachment for plows comprising a supporting wheelstandard, means to pivotally and adjustably connect the upper end ofsaid standard with the standard of the main plow, pivot plates securedto the upper end of said wheel standard, said plates having longitudinalslots formed therein, a subsoil plow standard having in its upper end apivot bolt adapted to slidably engage the slots in said plates, camlevers pivotally mounted on said plates, said levers having curvedslotted lower ends adapted to engage the pivot bolt in the plow standardwhereby the standard may be raised and lowered by said cam levers, andan operating lever connected to said cam levers.

5. A sub-soil -attachment for plows comprising a supporting wheelstandard, means to adjustably connect said standard with the standard ofthe main plow, pivot plates secured to the upper end of said wheelstandard, said plates having longitudinal slots formed therein, asub-soil plow standard having in its upper end a pivot bolt adapted toslidably engage the slots in said plates, cam levers pivotally mountedon said plates and having slots adapted to engage the pivot bolt in theplow standard, guide rollers revolubly mounted in said supporting wheelstandard whereby said sub-soil plow standard is guided in its movements,a hand lever pivot-ally connected to said wheel standard, and means toconnect said hand lever with said cam levers.

6. A subsoil attachment for plows comprising a supporting wheelstandard, means to pivotally and adjust-ably connect the up per end ofsaid standard with the standard of the main plow, pivot plates securedto the upper end of said wheel standard, said plates having longitudinalslots formed therein, a subsoil plow standard having in its upper end apivot bolt adapted to slidably engage the slots in said plates, camlevers pivotally mounted on said plates, said levers having curvedslotted lower ends adapted to engage the pivot bolt in the plow standardwhereby the standard may be raised and lowered by said cam levers, guiderollers revolubly mounted in said supporting wheel standard whereby saidsub-soil plow standard is guided in its movements, a hand leverpivotally connected to said wheel standard, a link to connect said handlever with said cam levers a segmental rack arranged on said wheelstandard, a spring projected locking pawl carried by said hand lever andadapted to engage said rack whereby said plow adjusting mechanism islocked to hold the subsoil plow in its adjusted positions, and a handoperated pawl releasing lever operatively connected with said pawlwhereby the latter may be disengaged from said rack to release saidadjusting mechanism.

7 In a sub soil plow attachment for plows, a supporting wheel standardcomprising a main member consisting of a pair of bars having their rearends bent downwardly and forwardly, a rear standard member adjustablyconnected with the bars of the main member, runners formed on saidmembers, supporting wheels revolubly mounted be-. tween said runners,and a wheel cleaning blade secured to the bars of the main member;combined with a sub-soil plow standard arranged between and having asliding engagement with said bars, means to connect said supportingwheel standard with the main plow beam whereby said standard may beadjusted vertically and horizontally, means to adjust said sub-soil plowstandard in said supporting wheel standard, and a sub-soil plow securedto the lower end of the subsoil plow standard.

8. In a subsoil plow attachment for plows a supporting wheel standard,said standard comprising a main member consisting of a pair of parallelhorizontally disposed bars having their rear ends bent downwardly andforwardly, a rear standard member comprising a pair of parallel barshaving an ad justable connection with the bars of the main member of thestandard, runners formed on the ends of said main and rear standardmembers, supporting wheels revolubly mounted between said ends orrunners of the members, a wheel cleaning blade secured to the bars ofthe main member of the stand, ard whereby the supporting wheel thereinis cleaned, upper and lower guide rollers revolubly mounted between thebars of said main standard, a subsoil plow standard arranged betweensaid bars and having a sliding engagement with said rollers, means toconnect said supporting wheel standard with the main plow whereby saidstandard may be adjusted Vertically and horizontally, means to adjustsaid subsoil plow standard in said supporting wheel standard, and asubsoil plow secured to the lower end of the subsoil plow standard.

In testimony whereof I have hereunto setmy hand in presence of twosubscribing witnesses.

JAMES ALLEN HUGGINS. Vitnesses J. M. BLACK, JOHN T. MONEILL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

